Answer;
D. A wading Shorebird such as a heron
Explanation;
Intertidal zone is of the area of the foreshore and seabed that is exposed to the air at low tide and submerged at high tide, that is; the area between tide marks,
It is a complex ecosystem found along coastlines where the land and sea meet, between the high and low tide zones.
The zone is inhabited by animals such as shorebirds for example the heron.